Roving-holder



R.-E. HANSCOM AND M. J. GRIFFIN.

ROVING HOLDER.

TION HL AP 7 191B. 7 IR 8 5,54QS Patented June a; 1919.

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lvvuemtozd Hmzacowa j/awme R. E. HANSCOMAND M. J. GRIFHN.

ROViNG HOLDER. APPLICATION EiLED 050.16, 1918.

Patentad June 3, 1919.

2 SHEETS--SHEET 2-' STATES PATENT OFFICE.

RALPH E. HANSCOM AND MAURICE J. GRIFFIN, OF MANCHESTER, NEW HAMPSHIRE.

ROVING-HOLDER.

Application filed December 16, 1918.

To all whom it may concern:

Be it known that we, RALPH E. HANscoM and MAURICE J. GRIFFIN, citizens of the United States, residing at Manchester, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Roving-Holders; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in devices for attachment to spinning machines to automatically hold the roving against being fed to the machine, in case the yarn is broken, thereby overcoming difficulties which are encountered when no such devices are used.

We are aware that roving holders and breakers have heretofore been devised, but our invention aims to improve upon such device, first by the provision of extremely simple and inexpensive construction; second by novel means for attaching the devices and permitting quick and easy detachment thereof, third by providing a novel arrangement of jaws for holding the roving, and fourth by providing a unique adjustable connection between the actuating lever for the movable jaw and the feeler arm orrod which is con trolled by the yarn.

With the foregoing in view, the invention resides in the novel features of construction and unique arrangements of parts hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which form a part of this application.

Figure 1 is a side elevation of the inven tion applied to a spinning frame.

Fig. 2 is a sectional view of the invention applied, showing the relative positions of parts when the yarn breaks.

Fig. 3 is a detail transverse section on the plane of line 33 of Fig. 2.

Fig. 4: is a perspective view of the device detached.

Fig. 5 is a perspective of the back plate of the casing.

Fig. 6 is a perspective of the remainder of the casing.

Fig. 7 is a perspective view of the movable jaw and its operating means.

Specification of Letters Patent.

Patented June 3, 1919.

Serial No. 266,963.

Fig. 8 is a perspective view of the front plate of the casing.

Fig. 9 is a detail elevation showing a different manner of transmitting motion from the operating lever to the movable jaw.

In the drawings above briefly described, the numeral 1 designates a portion of a spinning frame having the well known feed rolls 2 and rail 3 upon which the trumpets are usually mounted for guiding the roving 4: between the rollers, so that the latter will form such roving into yarn as indicated at 5. Breakage of the yarn has hitherto caused considerable trouble and inconvenience, due to the fact that the roving continues to be fed when such breakage takes place, with the result that provision has been necessitated upon the machine to receive such roving; Considerable time has been lost due to such occurrences as that above referred to and in addition, large quantities of the roving are wasted. Due to the nature of our invention, however, such loss of time and waste of material are prevented.

In carrying out our invention, we remove the usual trumpets from the rail 3 and attach a plurality of vert cal plates 6 thereto in place of said trumpets, the upper ends of said plates preferably having lateral, slotted ears 7 for the reception of the attaching screws 8. The plates 6 extend slightly above the trumpet rail 3 as shown in Figs. 1 and 2 and constitute flanges for a purpose to appear, each of these flanges being provided with a pair of vertical projections 9, which are spaced apart longitudinally of the rail. The lower end of each plate 6 is provided with a vertically elongated slot 10 and below this slot with a forwardly projecting extension 11, both for purposes to appear.

For each plate 6, a casing 12 is provided, said casing consisting of a pair of inverted L shaped side plates 13, a top plate 14:, and a front plate 15, said plates 141 and 15 being preferably joined integrally as seen for instance in Fig. 8. Plate 14 is provided with an opening 16 through which the roving 4; passes, while the lower end of plate 15 is provided with a notch 17 which is horizontally alined with the notch 10. The top and front 14. and 15 may be secured to the side plates 13 in any preferred manner, as by soldering or brazing, and for additionally spacing said plates, as well as providing a fixed jaw to assist in gripping theroving when the yarn breaks, a triangular block 18 is positioned between the horizontal arms 19 of the aforesaid plates and is held in place by rivets or the like 20.

The plate 6 closes the rear side of the casing 12 and the rearwardly extending arms 19 are engaged with the notch or seat existing between the projections 9, being provided in their lower edges with notches 21 which are hooked over the flanges formed by the upper ends of the aforesaid plates 6. By this arrangement, the casing cannot shift laterally, nor can it be detached without first raising it, and this raising is normally prevented by the coaction of the extension 11 with a pin or the like 22 which projects across the lower end of the casing, said extension being received in and forming a bottom for the casing, against the lower side of which the pin bears seen in Fig. 2. By this arrangement, the casing 12 cannot be detached until it is first angled by pulling forwardly on its lower end, but when this is done the notches 21 may be readily disengaged from the projections 9.

Vithin the casing 12, a dog or movable jaw 23 is pivotally mounted at 24 for coaction with the fixed jaw or block 18 in clamping the roving 4 as depicted in Fig. 2. Below the dog 23 an operating lever 25 is fulcrumed at 26, and any suitable means may be provided for transmitting motion from said lever to said dog. In Figs. 1, 2 and 7, a link 27 connects the dog and lever, while in Fig. 9 intermeshing gear teeth 27 are shown connecting the jaw 23 and the lever 25; and it will be understood that these disclosures are for illustrative purposes only.

The lever 25 extends forwardly through the slot 17 and is preferably enlarged and threaded on the exterior of the casing, said enlarged portion having a longitudinal slot 28 in its lower side which receives the front end of a feeler rod 29 which passes through the notch 10. To adjustably secure the rod 29 in the slot 28, a sleeve 30 is threaded on the arm 25 and this sleeve serves as a weight to operate the lever when breakage of the yarn releases the forked shoe 31 of rod 29 as seen in Fig. 2. The sleeve 30 is provided with one or more screws 32, one of which bears against the rod 29 to secure it against sliding in the slot 28 after the proper ad justments have been made. A plurality of screws are by preference used, in order that a very minute adjustment of the sleeve 30 along the arm 25 may be made, for instance, turning said sleeve only a third of a revolution and still properly position a screw for engagement with the rod 29.

Then the device is properly installed in place of the usual trumpets on the rail 3 or elsewhere if required, it will be highly eiiicientand of great advantage, The roving a passes through the eye 16, beneath the block or jaw 18 and between the feed rolls 2 in the usual manner, the yarn 5 being trained over the shoe 31 as seen in F ig. 1. lVith the parts so arranged the rod 29 is held in a depressed position, with the result that the movable jaw 23 is held out of engagement with the roving as depicted in dotted lines in F ig. 1. The moment the yarn breaks, however, as seen in Fig. 2, the weighted sleeve 30 descends by gravity and throws the jaw 23 against the roving, so that the latter is tightly gripped between the two aws which are toothed'for this purpose. Since the rolls 2 continue to pull upon the roving the latter is broken at 33, so that only a short length of yarn will be fed to the machine. The device. may be quickly and easily released so that the attendant may again start feeding the broken roving, and whenever it is necessary to detach any of the devices, this may be easily and quickly accomplished, due to the novel attaching means above described.

From the foregoing, taken in connection with the accompanying drawings, it will be seen that although our invention is of simple and inexpensive nature, it will be higlny eiiicient and in every way desirable; and since probably the best results are obtained from the details disclosed, they may well be followed, but within the scope of the invention as claimed, considerable lati tude is allowed for making such minor changes as occasion may dictate.

We claim:

1. In a roving clamp, a casing for the clamping means, means releasable by movement of said casing in one direction for re taining the same on the trumpet rail of a spinning machine, and means releasable by movement of said casing in another direction for normally preventing said first men tioned movement thereof.

2. In a roving clamp, a casing for the clamping mechanism provided with supporting means adapted to be hooked over a part of the trumpet rail of a spinning machine, and means for normally holding said casing to prevent unhooking of the same.

3. The combination with a spinning frame whose trumpet rail is provided with a pair of projections spaced apart longitudinally of said rail; of a roving holder hav ing a portion received between said projections and provided with means releasable by bodily movement of said holder for connecting it to said trumpet rail.

4. The combination with a spinning frame whose trumpet rail is provided with a pair of projections spaced apart longitudinally of said rail; of a roving holder having a portion received between said projections and provided with means releasable by angling of said holder for connecting it to said trumpet rail.

5. The combination with a spinning frame; of an upwardly projecting flange on the trumpet rail thereof, and a roving holder having means detachably hooked over said flange for connecting said rail and holder.

6. The combination frame; of an upwardly extending flange on the trumpet rail thereof, and a roving holder having a laterally extending portion provided in its lower side with a notch hooked over said flange.

7. The combination with a spinning frame; of an upwardly extending flange on the trumpet rail thereof provided with a pair of projections spaced apart longitudinally of said rail, and a roving holder .having a portion received between said projections and hooked over said-flange.

8. The combination with a spiiming frame; of an upwardly extending flange on the trumpet rail thereof provided with a pair of projections spaced apart longitudinally of said rail, and a roving holder having a laterally extending portion received between said projections and provided with a notch hooked over said flange.

9. The combination with a spinning frame; of a vertically elongated plate secured thereto, a casing resting against one side of said plate and detachably connected to the upper end thereof, coacting means on said casing and plate to prevent detachment of said casing until said means coacting are disengaged, and means in said casing for holding the roving against movement upon breakage.

10. The combination with a spinning frame; of a vertically elongated plate secured thereto having an outwardly projecting extension on its lower end, a vertically elongated casing resting against the front side of said plate and hooked over the upper end thereof, the aforesaid extension of said plate forming a bottom for the casing, means in said casing engaging said extension to hold the casing against upward movement until said means and extension with a spinning are disengaged, and means in said casing for holding the roving against movement upon breakage. V

11. In a roving holder, a pair of vertical plates, a fixed jaw between the upper ends of said plates, a movable jaw mounted be tween said plates below said fixed jaw to coact therewith in holding the roving, a roving-controlled lever fulcruined between the lower ends of said plates, means for operating said lever upon breakage of the roving, and means between said plates for transmitting movement from said lever to said movable aw.

12. In a roving holder, a casing consisting of a back plate, a pair of inverted L shaped side plates whose horizontal ends are hooked over the upper end of said back plate, a top and a front plate secured to the edges of said side plates and provided with an eye for the roving, a block secured be tween the horizontal arms of said side plates, a movable jaw mounted in said casing and coacting with said block to hold the roving upon breakage thereof, a roving-eontrolled lever passing through and fulcrumed on said casing, means for operating said lever upon breakage of the roving, and means for transmitting movement from said lever to said movable jaw.

13. A roving holder having an operating lever provided with a longitudinal groove, a rod slidable at one end in said groove and having a shoe on its other end to engage the roving, and a sleeve surrounding said arm and retaining said rod adjustably in said groove, said sleeve acting as a weight to operate said lever upon breakage of the roving.

l i. In a roving clamp, a plate adapted for attachment to the trumpet rail of a spinning machine, said plate having a seat, a casing for the clzunping mechanism engaged ren'iovably with said seat, and coacting means on said plate and casing to normally prevent disengagement of the latter from said seat.

In testimony whereof We have hereunto set our hands.

RALPH E. HANSCOM. MAURICE J. GRIFFIN.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 3). C. 

